Pinterest Scorched Earth Policy Against Url Shorteners
I applaud Pinterest on their efforts to fight spammers, but their scorched earth policy against URL Shorteners is a bit overkill.
And the “error message” is confusing. Here is there full policy:
5. Using a link-shortener or a link-redirect, for example: bit.ly or other link-shorteners – try using the full link in a comment or pin description instead! Also try pinning from the original source without using a link-redirect.
Number five does spell it out, but if you don’t click on the “read more” link, you’re left thinking you were blocked because you pinned too much, which wasn’t my case. By removing the URL shortener, I was able to pin to my board.